District Safety and Security Manager Jesse Lunsford said the district received multiple tips about the same photo as it started to spread on social media.

"Please understand that the safety and security of our students, staff and visitors is and always will be our number-one priority and we will continue to take all reasonable steps we can to ensure safe campuses throughout our district," the statement said.

Lunsford said the district has received more tips through the state-run system this semester than it did all of last year, though not all tips were of the same magnitude as Sunday night's. That means the system is working, he added.

When it comes to safety and security, Lunsford said the district is always updating its plans, especially as "bad guys" learn new tactics. Updates on how staff members train, on identifying threats ahead of time and on how staff and children respond during drills and in active events are also regularly updated.

Lunsford acknowledged that schools can't prevent every violent threat, and "unfortunately, the Florida shooting is not rare," but the school district works to ensure maximum safety for its students, including training with police.

Reporter Saja Hindi covers public safety and local politics. You can follow her on Twitter @BySajaHindi or email her at shindi@coloradoan.com.